Weather in Buenos Aires in December
In an average December, Buenos Aires sees a daily high around 26°C and a low around 19°C, based on 1980–2026 of local climate records.
| Average high | 26°C |
|---|---|
| Typical high range | 22°C to 29°C |
| Average low | 19°C |
| Typical low range | 15°C to 22°C |
| Average daily precipitation | 3 mm |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
35°C
2025-12-31
Lowest
17°C
2001-12-03
Low
Highest
27°C
2013-12-30
Lowest
9°C
1999-12-06
Feels-like
Highest
49°C
2012-12-24
Lowest
6°C
1999-12-06
Humidity
Highest
22.4 g/m³
2012-12-24
Lowest
5.8 g/m³
1999-12-06
Wind
Highest
50 km/h
2020-12-19
Lowest
9 km/h
2010-12-20
Gust
Highest
81 km/h
2020-12-19
Lowest
15 km/h
1994-12-23
Precip
Wettest
233 mm
1997
Driest
11 mm
2021
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